本文转载：http://www.cnblogs.com/hailexuexi/archive/2012/04/23/2466398.html
代码:
#region DataGridVeiw Style
System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle1 = new System.Windows.Forms.DataGridViewCellStyle();
System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle2 = new System.Windows.Forms.DataGridViewCellStyle();
this.DataGridView1.AllowUserToAddRows = false;
this.DataGridView1.AllowUserToDeleteRows = false;
dataGridViewCellStyle1.BackColor = System.Drawing.Color.LightCyan;
this.DataGridView1.AlternatingRowsDefaultCellStyle = dataGridViewCellStyle1;
this.DataGridView1.BackgroundColor = System.Drawing.Color.White;
this.DataGridView1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.DataGridView1.ColumnHeadersBorderStyle = System.Windows.Forms.DataGridViewHeaderBorderStyle.Single;
dataGridViewCellStyle2.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;//211, 223, 240
dataGridViewCellStyle2.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(211)))), ((int)(((byte)(223)))), ((int)(((byte)(240)))));
dataGridViewCellStyle2.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
dataGridViewCellStyle2.ForeColor = System.Drawing.Color.Navy;
dataGridViewCellStyle2.SelectionBackColor = System.Drawing.SystemColors.Highlight;
dataGridViewCellStyle2.SelectionForeColor = System.Drawing.SystemColors.HighlightText;
this.DataGridView1.ColumnHeadersDefaultCellStyle = dataGridViewCellStyle2;
this.DataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.DataGridView1.EnableHeadersVisualStyles = false;
this.DataGridView1.GridColor = System.Drawing.SystemColors.GradientInactiveCaption;
this.DataGridView1.ReadOnly = true;
this.DataGridView1.RowHeadersVisible = false; //建议改为true；为了以后显示序号。
this.DataGridView1.RowTemplate.Height = 23;
this.DataGridView1.RowTemplate.ReadOnly = true;